Pentadiagonal Companion Matrices

The class of sparse companion matrices was recently characterized in terms of unit Hessenberg matrices. We determine which sparse companion matrices have the lowest bandwidth, that is, we characterize which sparse companion matrices are permutationally similar to a pentadiagonal matrix and describe...

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Bibliographic Details
Main Authors: Eastman Brydon, Vander Meulen Kevin N.
Format: Article
Language:English
Published: De Gruyter 2016-01-01
Series:Special Matrices
Subjects:
Online Access:http://www.degruyter.com/view/j/spma.2016.4.issue-1/spma-2016-0003/spma-2016-0003.xml?format=INT